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  <title>Get path name of controlling terminal</title>

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</div><hr /><div id="function.posix-ctermid" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">posix_ctermid</h1>
  <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">posix_ctermid</span> &mdash; <span class="dc-title">Get path name of controlling terminal</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.posix-ctermid-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">string</span> <span class="methodname"><strong>posix_ctermid</strong></span>
    ( <span class="methodparam">void</span>
   )</div>

  <p class="para rdfs-comment">
   Generates a <span class="type"><a href="language.types.string.html" class="type string">string</a></span> which is the pathname for the current 
   controlling terminal for the process.  On error this will set errno, 
   which can be checked using <span class="function"><a href="function.posix-get-last-error.html" class="function">posix_get_last_error()</a></span>
  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.posix-ctermid-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Upon successful completion, returns <span class="type"><a href="language.types.string.html" class="type string">string</a></span> of the pathname to 
   the current controlling terminal.  Otherwise <strong><code>FALSE</code></strong> is returned and errno
   is set, which can be checked with <span class="function"><a href="function.posix-get-last-error.html" class="function">posix_get_last_error()</a></span>.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.posix-ctermid-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-3556">
    <p><strong>Example #1 <span class="function"><strong>posix_ctermid()</strong></span> example</strong></p>
    <div class="example-contents"><p>
     This example will display the path to the current TTY.
    </p></div>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #007700">echo&nbsp;</span><span style="color: #DD0000">"I&nbsp;am&nbsp;running&nbsp;from&nbsp;"</span><span style="color: #007700">.</span><span style="color: #0000BB">posix_ctermid</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.posix-ctermid-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.posix-ttyname.html" class="function" rel="rdfs-seeAlso">posix_ttyname()</a> - Determine terminal device name</span></li>
    <li class="member"><span class="function"><a href="function.posix-get-last-error.html" class="function" rel="rdfs-seeAlso">posix_get_last_error()</a> - Retrieve the error number set by the last posix function that failed</span></li>
   </ul>
  </p>
 </div>

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